Research On Resource Management Mechanism For High Energy-efficiency Wireless Collaborative Communication System

Increasingly high data rate demands have made existing communication networks increasingly tight in terms of load,and the speed of battery power consumption of mobile terminals(MT)has also increased.Therefore,there is an urgent need to develop a new wireless network architecture to solve the existing load and communication energy consumption problems.Existing researchers have proposed a content distribution architecture that combines Collaborative Mobile Clouds(CMC)and Simultaneous Wireless Information and Power Transfer(SWIPT)technologies,which are composed of mobile terminals.It can effectively improve the overload of the communication network and reduce the communication energy consumption.However,there are also the following problems: 1)In terms of energy acquisition,only the energy transfer between the base station and the mobile terminal is considered,and the energy interaction between the mobile terminals is not considered;2)The communication process in the CMC,the fairness of the energy consumption of the mobile terminal is not fully considered;3)The dedicated spectrum mode used for Device-to-Device communication in the CMC does not adopt the spectrum reused mode,and the spectrum utilization rate is not high.Therefore,this thesis needs to fully consider the above issues and redesign the existing new content distribution architecture.At the same time,due to the introduction of the reuse model,the problem of resource management will become more complicated.Specifically,the research in this thesis mainly includes the following parts:1.Design the communication process and communication protocol of the existing content distribution architecture,further introduce SWIPT technology into the communication network,and improve the fairness of terminal energy consumption,while also ensuring the efficiency and reliability of communication.In addition,the energy consumption is analyzed and modeled.2.Optimize the energy consumption model established in this thesis,including the energy optimization problem of cellular communication process and the energy optimization problem of D2 D multicast communication process.In the process of cellular communication,in order to jointly optimize communication delay and energy consumption,a data block allocation method is designed.In the D2 D multicast communication optimization process,it mainly includes spectrum resource allocation problems and power control problems.For spectrum resource allocation problem,this thesis designs a spectrum resource allocation algorithm based on the bipartite graph matching theory.The power control problem is divided into two cases: one is the case where the power is compensated by the base station.In order to reduce the energy consumption of the D2 D multicast communication,a nonlinear programming iterative algorithm is used to control the transmit power of the mobile terminal;The other is the case that the mobile terminal obtains energy from the surrounding environment.In this case,an adaptive power usage strategy is designed.Finally,numerical simulation experiments demonstrate the high energy efficiency brought by the work studied in this thesis.In summary,this thesis has carried out a deeper research on the combination of CMC and SWIPT technology,established a new content distribution model,and conducted in-depth research on communication resource management issues.It lays the theoretical foundation for promoting the development and application of an energyefficient content distribution architecture.